--- /dev/null
+/* Functions for pseudo TTY handling.
+ Copyright (C) 1996-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _PTY_H
+#define _PTY_H 1
+
+#include <features.h>
+
+struct termios;
+struct winsize;
+
+#include <termios.h>
+#include <sys/ioctl.h>
+
+
+__BEGIN_DECLS
+
+/* Create pseudo tty master slave pair with NAME and set terminal
+ attributes according to TERMP and WINP and return handles for both
+ ends in AMASTER and ASLAVE. */
+extern int openpty (int *__amaster, int *__aslave, char *__name,
+ const struct termios *__termp,
+ const struct winsize *__winp) __THROW;
+
+/* Create child process and establish the slave pseudo terminal as the
+ child's controlling terminal. */
+extern int forkpty (int *__amaster, char *__name,
+ const struct termios *__termp,
+ const struct winsize *__winp) __THROW;
+
+__END_DECLS
+
+#endif /* pty.h */